The ABH antigens in human tissues and secretions during embryonal development.
D000017:ABO Blood-Group System; D001789:Blood Group Antigens; D004622:Embryo, Mammalian; D004848:Epithelium; D005333:Fetus; D005455:Fluorescent Antibody Technique; D006801:Humans; D066298:In Vitro Techniques; D007421:Intestine, Small; D008856:Microscopy, Fluorescence
D000017:ABO Blood-Group System; D001789:Blood Group Antigens